Testing the Complexity of Passwords : preg_match « String « PHP

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PHP » String » preg_match

Testing the Complexity of Passwords


 

<?php

  $values = array(

    "password",    // Bad

    "P4ssw0rd",    // Good

    );



  foreach ($values as $value) {

    if (! preg_match( '/^(?=.*[A-Z])(?=.*[a-z])(?=.*[0-9]).{8,16}/', $value)) {

      printf("Bad password:  '%s'\n", $value);

    } else { 

      printf("Good password:  '%s'!\n", $value);

    }

  }

?>

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